Renesas R5F2135CMNFP#30
- Part No.:
- R5F2135CMNFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F2135CMNFP#30.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F2135CMNFP#30 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 128 KB flash program memory, 10 KB RAM, and 4 KB data flash (1 KB × 4 blocks) supporting background operation (BGO). It delivers 50 ns minimum instruction execution at 20 MHz (VCC = 2.7–5.5 V), integrates dual 8-bit timers (RA/RB), dual 16-bit timers (RC/RD), real-time clock (RE), 10-bit × 12-channel ADC, dual 8-bit DACs, LIN hardware module, and I²C/UART/SSU serial interfaces. It targets embedded control in consumer audio and office equipment.
For engineers reviewing the R5F2135CMNFP#30 datasheet, R5F2135CMNFP#30 pinout, R5F2135CMNFP#30 application, or R5F2135CMNFP#30 equivalent, key selection criteria include its -20°C to +85°C operating range (N version), 52-pin LQFP package (PLQP0052JA-A), integrated voltage detection and watchdog timer, low-power wait/stop modes (3.5 µA / 2.0 µA), and on-chip debug capability for rapid firmware development.
Technical Context
The R5F2135CMNFP#30 implements the R8C CPU core with 89 fundamental instructions, 1 Mbyte address space, and a dedicated 16×16→32-bit multiplier with MAC support. Its clock system includes four independent sources: XIN (up to 20 MHz), XCIN (32 kHz), high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - all selectable via software-controlled dividers (1/2/4/8/16).
Peripheral integration centers on deterministic real-time control: Timer RD provides complementary PWM for three-phase motor drive (6-pin output, triangular/sawtooth modulation), while the LIN module leverages UART0 and Timer RA for hardware-level ISO 9141-2/SAE J2602 compliance. The DTC supports 33 activation sources and two transfer modes (normal/repeat) for autonomous data movement without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 1 Mbyte address space, and 16×16→32-bit multiplier |
| Memory | 128 KB flash program ROM, 10 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO |
| Operating Voltage | 1.8–5.5 V; supports 20 MHz operation at ≥2.7 V, 5 MHz at ≥1.8 V |
| Power Consumption | 6.5 mA typical @ 5.0 V/20 MHz; 3.5 µA @ 3.0 V/wait mode (32 kHz); 2.0 µA @ stop mode |
| Timers | Timer RA/RB (8-bit × 2), RC (16-bit × 1), RD (16-bit × 2 with 6-PWM/complementary modes), RE (8-bit RTC) |
| Analog Peripherals | 10-bit × 12-channel ADC with sample-and-hold and sweep mode; dual 8-bit DACs (DA0/DA1) |
| Serial Interfaces | UART0/1/2 (UART2 supports I²C-bus mode), SSU (shared with I²C), hardware LIN module |
Pinout & Package
Package: 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC | Power supply input / analog power | Core and analog domain supply (1.8–5.5 V); AVCC requires decoupling to AVSS for ADC/DAC stability |
| VSS / AVSS | Ground / analog ground | Digital and analog reference return; separation minimizes noise coupling into ADC/DAC paths |
| XIN / XOUT | External crystal oscillator input/output | Supports up to 20 MHz crystal/resonator; enables precise timing for real-time control loops |
| XCIN / XCOUT | 32 kHz crystal oscillator input/output | Provides low-power RTC source; enables accurate timekeeping during stop/wait modes |
| RESET | Active-low reset input | Hardware reset assertion; initiates boot sequence and register initialization |
| MODE | Boot mode select | Must be pulled high via resistor to enter normal user program execution mode |
| P0_0–P0_7 | Port 0 I/O pins | CMOS bidirectional ports with programmable pull-up; AN0–AN7 and DA0/DA1 share pins for mixed-signal flexibility |
| P1_0–P1_7 | Port 1 I/O pins | Include KI0–KI3 key interrupt inputs, IVREF/IVCMP analog monitor inputs, and TRAIO/TRAO timer signals |
| P2_0–P2_7 | Port 2 I/O pins | Support TRDIOx functions for Timer RD PWM outputs and capture inputs; critical for motor control |
| P3_0–P3_7 | Port 3 I/O pins | Host SCL/SDA (I²C), SSCK/SSI/SSO (SSU), and INT1/INT2/INT3 interrupt inputs |
| P4_2–P4_7 | Port 4 I/O pins | P4_2 = VREF input; P4_3/P4_4 = XCIN/XCOUT; P4_6/P4_7 = XIN/XOUT; P4_5 = ADTRG/INT0 |
| P5_6 / P5_7 | Port 5 I/O pins | P5_6 = TRAO (Timer RA output); P5_7 = general-purpose I/O with no alternate function listed |
| P6_0–P6_7 | Port 6 I/O pins | P6_0 = TREO (RTC output); P6_2–P6_4 = CLK1/TXD1/RXD1; P6_5–P6_7 = INT4/INT2/INT3 |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming proceeds concurrently with CPU code execution, enabling seamless firmware updates |
| Hardware LIN Module | Full ISO 9141-2/SAE J2602 compliance using UART0 and Timer RA - eliminates software protocol stack overhead |
| Complementary PWM Generation | Timer RD supports synchronous three-phase PWM with dead-time insertion and triangular wave modulation for BLDC motor drives |
| Low-Power Real-Time Clock | Timer RE operates from 32 kHz XCIN crystal during stop mode (2.0 µA), maintaining calendar time without waking CPU |
| On-Chip Debug Interface | Fully integrated debug circuit enables breakpoint setting, register inspection, and flash rewrite without external emulator |
Applications
| Audio System Control | Office Equipment Motor Drive |
|---|---|
|
Use Scenario: Digital audio receiver managing volume, input switching, DSP configuration, and front-panel LED indicators. IC Role / Device Role / Timing Role: Main system controller executing real-time audio processing tasks, handling UART-based remote control, and driving DACs for analog output stage calibration. Use Value: Integrated 10-bit ADC monitors power supply rails and thermal sensors; dual DACs calibrate analog audio path gain; LIN interface communicates with display modules. |
Use Scenario: Laser printer engine controller managing paper feed, fuser temperature, and toner delivery motors. IC Role / Device Role / Timing Role: Central motion controller generating synchronized PWM waveforms for stepper and BLDC motors via Timer RD's complementary outputs. Use Value: 6-pin complementary PWM with triangular modulation ensures precise phase alignment; 32 kHz RTC maintains job timestamping; low-power stop mode reduces standby consumption. |
| Consumer Appliance UI | Industrial Sensor Node |
|
Use Scenario: Microwave oven control panel detecting keypad presses, monitoring cavity temperature, and driving segmented LCD. IC Role / Device Role / Timing Role: User interface processor with key input interrupts (KI0–KI3), analog sensing (AN0–AN11), and LED drive capability on all I/O ports. Use Value: Hardware key scan reduces CPU load; 12-channel ADC reads thermistors and current sensors; BGO allows field firmware updates without halting appliance operation. |
Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and air quality over extended periods. IC Role / Device Role / Timing Role: Ultra-low-power data acquisition unit using wait mode (3.5 µA) with 32 kHz RTC wake-up and ADC-triggered data logging. Use Value: 2.0 µA stop mode extends battery life; internal voltage detection prevents brown-out resets; data flash stores calibration coefficients with BGO for safe field updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2135AMNFP | 96 KB program ROM, 8 KB RAM, same peripheral set and package | Suitable where firmware footprint is <96 KB and cost optimization is prioritized | Select when full 128 KB is unnecessary and BOM cost reduction is critical |
| R5F2135CMDFP | Identical memory and peripherals; rated for -40°C to +85°C industrial temperature range | Required for applications exposed to extended ambient temperature extremes | Choose for automotive cabin modules or outdoor industrial enclosures needing wider thermal tolerance |
Compared with R5F2135AMNFP, the R5F2135CMNFP#30 provides 32 KB more program memory for complex feature sets; compared with R5F2135CMDFP, it trades industrial temperature rating for lower cost in commercial-grade environments.
Availability
R5F2135CMNFP#30 is available at Aetrix Electronics and suitable for audio system control, office equipment motor drive, consumer appliance UI, and industrial sensor node applications requiring stable component supply across production lifecycles.
Supply support for R5F2135CMNFP#30 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The R8C/35M Group, including R5F2135CMNFP#30, was designed for cost-sensitive, low-power embedded control in consumer electronics - emphasizing integrated analog peripherals, robust EMI/EMS performance, and on-chip debug efficiency.
FAQ
What is the maximum operating frequency of the R5F2135CMNFP#30?
The R5F2135CMNFP#30 achieves a minimum instruction execution time of 50 ns at 20 MHz when powered at 2.7–5.5 V. At lower voltages (1.8–5.5 V), it supports 5 MHz operation. The CPU core uses an internal frequency divider, allowing flexible clock scaling without external components.
Does the R5F2135CMNFP#30 support hardware LIN communication?
Yes, the R5F2135CMNFP#30 integrates a dedicated hardware LIN module compliant with ISO 9141-2 and SAE J2602 standards. It combines UART0 and Timer RA to implement LIN physical layer signaling and protocol timing - eliminating software bit-banging and ensuring deterministic frame transmission.
What are the data flash capabilities of the R5F2135CMNFP#30?
The R5F2135CMNFP#30 includes 4 KB of data flash organized as four 1 KB blocks. It supports background operation (BGO), enabling concurrent CPU execution and flash erase/program cycles. Endurance is rated at 10,000 write/erase cycles, and programming voltage matches VCC (2.7–5.5 V).
How does the R5F2135CMNFP#30 manage ultra-low-power operation?
The R5F2135CMNFP#30 offers multiple low-power modes: wait mode draws 3.5 µA (32 kHz XCIN active), and stop mode consumes just 2.0 µA. Both retain RAM content and allow wake-up via interrupts or RTC alarm. The low-speed on-chip oscillator can optionally power the watchdog timer independently.
Is the R5F2135CMNFP#30 pin-compatible with other R8C/35M Group MCUs?
Yes, all R8C/35M Group devices, including R5F2135CMNFP#30, use the identical 52-pin LQFP package (PLQP0052JA-A) and share the same pin assignment and electrical characteristics. Firmware and PCB designs are interchangeable across memory variants (e.g., R5F21354MNFP to R5F2135CMNFP#30) without layout changes.
R5F2135CMNFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- R8C/3x/35M
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SIO, SSU, UART/USART
- Peripherals:
- POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 47
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 12x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F2135CMNFP#30 FAQ
1.How can I place an order for R5F2135CMNFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2135CMNFP#30 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F2135CMNFP#30 reliable?
The price and inventory of R5F2135CMNFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2135CMNFP#30 is usually 5 days.
3.What payment methods are accepted for R5F2135CMNFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2135CMNFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2135CMNFP#30?
R5F2135CMNFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2135CMNFP#30 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F2135CMNFP#30?
For technical support, including R5F2135CMNFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2135CMNFP#30 requirements.
6.How does Aetrix verify that R5F2135CMNFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F2135CMNFP#30 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F2135CMNFP#30 meets industry standards.
7.What is the process for return or replacement of R5F2135CMNFP#30?
All R5F2135CMNFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2135CMNFP#30, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F2135CMNFP#30 part is unused and in its original packaging.
Return procedure for R5F2135CMNFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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